1. You can use the dimension Network Domain to indicate domain names of your visitors. Many larger companies have their own networks, and traffic from their firewalls typically come from their domain. You can create a custom report that will show Network Domain and Users/Pageviews to manually scan for domains of interest to you.

2. Some services use that information and filter out the generic service provider-type sources so you can see corporate domains only. The ones I have seen (like leadlander or visualvisitor or whoisvisiting) are paid services that link to external information.

1. You can use the dimension Network Domain to indicate domain names of your visitors. Many larger companies have their own networks, and traffic from their firewalls typically come from their domain. You can create a custom report that will show Network Domain and Users/Pageviews to manually scan for domains of interest to you.

2. Some services use that information and filter out the generic service provider-type sources so you can see corporate domains only. The ones I have seen (like leadlander or visualvisitor or whoisvisiting) are paid services that link to external information.